id: caddy-open-redirect

info:
  name: Caddy 2.4.6 Open Redirect
  author: dhiyaneshDK
  severity: medium
  description: Caddy 2.4.6 contains an open redirect vulnerability via php_fastcgi. An attacker can redirect a user to a malicious site and possibly obtain sensitive information, modify data, and/or execute unauthorized operations.
  reference:
    - https://github.com/caddyserver/caddy/issues/4502
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
    cvss-score: 6.1
    cwe-id: CWE-601
  tags: redirect,caddy,server

requests:
  - method: GET
    path:
      - '{{BaseURL}}//interact.sh/%2F..'

    matchers:
      - type: regex
        part: header
        regex:
          - '(?m)^(?:Location\s*?:\s*?)(?:https?:\/\/|\/\/|\/\\\\|\/\\)?(?:[a-zA-Z0-9\-_\.@]*)interact\.sh\/?(\/|[^.].*)?$' # https://regex101.com/r/ZDYhFh/1

# Enhanced by md on 2022/10/14